Cotton, Water, Salts and SoumsChristopher Martius, Inna Rudenko, John P.A. Lamers, P.L.G. Vlek, P. L. G. Vlek, John P. A. LamersHäftad2 069 kr
Cotton, Water, Salts and SoumsChristopher Martius, Inna Rudenko, John P.A. Lamers, P.L.G. VlekInbunden2 069 kr
Del 14Micronutrients in Tropical Food Crop ProductionPaul L.G. Vlek, Paul L. G. Vlek, Paul VlekInbunden2 749 kr
Micronutrients in Tropical Food Crop ProductionPaul Vlek, Paul L.G. Vlek, Paul L. G. Vlek, Paul L G VlekHäftad2 749 kr
Managing Organic Matter in Tropical Soils: Scope and LimitationsChristopher Martius, Holm Tiessen, Paul L.G. Vlek, Paul L. G. VlekHäftad1 389 kr
Management of Nitrogen and Phosphorus Fertilizers in Sub-Saharan AfricaUzo M. Mokwunye, Paul L.G. Vlek, Paul L. G. Vlek, Paul VlekInbunden2 069 kr
Management of Nitrogen and Phosphorus Fertilizers in Sub-Saharan AfricaUzo M. Mokwunye, Paul L.G. Vlek, Paul L. G. Vlek, Paul VlekHäftad2 069 kr